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VALTER G. STOUT,VOF CAMDEN, NEW JERSEY, AND HIRAM O. COWDRICK, -OFPHILADELPHIA, PENNSYLVANIA.

TOOTH-BRUSH.

SPECIFICATION forming pare of Letters Patent No. 540,884, dated June 11,1895.

Application led November 2, 1893. Serial No. 489,805| (No model.)

To a/ZZ whom it may concern@ Be it known that we, WALTER G. STOUT,residing in the city and county of Camden, State of New Jersey, andHIRAM O. CowDRroK, a resident of the city and county of Philadelphia,State of Pennsylvania, citizens of the United States; have invented anew and useful Improvement in Tooth-Brushes, which improvement is fullyset forth in the following specification and accompanying drawings.

Our invention consists of a tooth brush formed of a handle having areservoir thereinv for tooth-wash or fluid, a nozzle for directing thelatter to the head of the brush, means for permitting the supply andVpreventing the escape of the fluid, and a removable head which providesaccess to the nozzle, so that thesame may be closed when the reservoiris to be replenished, and permits the substitution of fresh bristles ora rubbing portion when the latter is worn out, the construction andoperation of parts being hereinafter more fully set forth.

Figure l represents a side elevation of a tooth-brush embodying ourinvention. Fig. 2 represents a longitudinal sectional view thereof. Fig.3 represents aface view thereof, the head of the brush being removed.Fig. 4 represents a transverse section on line oc Fig. l.

Similar letters of reference indicate corresponding parts in the severalfigures.

Referring to the drawings, A designates the handle of the brush, and Bdesignates the back of theirubbing portion thereof, said back being openand having flanges C on its sides to receive and hold the head D of thebristles or rubbing portion, said head as is evident being removablefrom said back. The handle is hollow forming a reservoir, andterminating .on its inner end in a nozzle E, which is in line with theface of the head D, and has its discharge end at the inner end of theback B, so as to direct the ow of the'` wash across the face of the saidhead D.

On the outer end of the handle :is a screw plug or cap F, which closessaid end, for preventing the escape of theV tooth-wash or fluid thereat.In the side of the handle, near said outer end is an air vent Gr, whichwhen the plug F is in position, closes said vent, and prevents theentrance of air into the handle.

end of the handle are closed, the head being.

also replaced. When thebrush is to be used,

the plug is removed sufficientlyv to uncover the vent, whereby the washwill flow through the nozzle across the face of the back D and supplythe bristles or rubbing portion with the wash. l NVhen service of thebrush is no llonger required the plug is operated to close the vent,when kthe supply of wash ceases, and improper escape of the same isprevented.

When the bristlesor rubbing portion wear out, the head may be withdrawnand substituted by a fresh one with bristles or portion, and the brushrender service as before, the head sliding on the back between theflanges C, both in removal and reapplication.

It will be noticed that the nozzle does not pass through either of thebacks B or D, but its discharge end is at one end of the face of theback D, so that the ow is across the said face, and not through saidhead, which latter is imperforated or solid whereby the Wash isthoroughly distributed to allot the bristles. This construction notweakening the backs by having openings therein, furnishes a more durablearticle.

Having thus described our invention,what

-we claim as new, and desire to secure by Letters Patent, is-

As a new article of manufacture, a tooth brush consistingof a hollowhandle,a nozzle, and a back with side flanges formed of a single pieceof material, a detachable head titting in said flanges, and a plugclosing the inlet of the handle, the discharge end of the nozzle beingat the inner end. of the brush, said parts being combined substantiallyas described.

WALTER G. STOUT.` HIRAM O. 'COWDRICK Vitnesses:

JOHN A. WIEDERSHEIM, R. H. GRAESER.

